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61. 发明授权

US07738583B2 Reduced feedback for beamforming in a wireless communication 有权
标题翻译：在无线通信中减少波束成形的反馈
公开(公告)号：US07738583B2
公开(公告)日：2010-06-15
申请号：US11168793
申请日：2005-06-28
申请人： Joonsuk Kim
发明人： Joonsuk Kim
IPC分类号： H04B7/02
CPC分类号： H04B7/0617 , H04B7/0417 , H04B7/0634
摘要： A method for reduced feedback for beamforming in a wireless communication begins by receiving a baseband signal. The method continues by digitally beamforming the baseband signal using a unitary matrix having polar coordinates.
摘要翻译：无线通信中用于波束成形的减少反馈的方法开始于接收基带信号。该方法通过使用具有极坐标的酉矩阵的数字波束成形基带信号来继续。

62. 发明授权

US07738356B2 Multiple stream cyclic-shifted delay transmitter 失效
标题翻译：多流循环移位延迟发射机
公开(公告)号：US07738356B2
公开(公告)日：2010-06-15
申请号：US11168832
申请日：2005-06-28
申请人： Joonsuk Kim
发明人： Joonsuk Kim
IPC分类号： H04J11/00
CPC分类号： H04B7/0671
摘要： A multiple stream cyclic-shifted delay transmitter including a baseband processing module and a plurality of RF transmit sections. The baseband processing module is operably coupled to convert outbound data into a plurality of transmit baseband signal streams and cyclic-shift delay at least one of the plurality of transmit baseband signal streams to produce at least one cyclic shift delayed transmit baseband signal stream. The plurality of RF) transmit sections is operably coupled to convert the plurality of transmit baseband signal streams and the at least one cyclic-shift delayed transmit baseband signal stream into a plurality of RF signals.
摘要翻译：一种多流循环移位延迟发射机，包括基带处理模块和多个RF发射部分。基带处理模块可操作地耦合以将出站数据转换为多个发射基带信号流，并且循环移位延迟多个发射基带信号流中的至少一个以产生至少一个循环移位延迟发射基带信号流。多个RF）发射部分可操作地耦合以将多个发射基带信号流和至少一个循环移位延迟的发射基带信号流转换成多个RF信号。

63. 发明授权

US07616955B2 Method and system for bits and coding assignment utilizing Eigen beamforming with fixed rates for closed loop WLAN 有权
标题翻译：使用固定速率的闭环无线局域网的本征波束成形的比特和编码分配的方法和系统
公开(公告)号：US07616955B2
公开(公告)日：2009-11-10
申请号：US11052389
申请日：2005-02-07
申请人： Joonsuk Kim
发明人： Joonsuk Kim
IPC分类号： G06F15/16
CPC分类号： H04L1/0013 , H04B7/0626 , H04L1/0003 , H04L1/0026 , H04L1/06
摘要： A method and system for bits and coding assignment utilizing Eigen beamforming with fixed rates for a closed loop WLAN is provided. Aspects of the method for communicating information in a communication system may comprise transmitting data via a plurality of radio frequency (RF) channels utilizing a plurality of transmitting antennas and receiving feedback information related to the plurality of RF channels. Bits may be assigned for transmission via at least one of the plurality of RF channels based on the feedback information. At least a portion of subsequent data having at least a first coding rate based on the assignment of bits may be transmitted via at least one of the plurality of RF channels. The method may also comprise receiving data via a plurality of RF channels utilizing a plurality of receiving antennas, and transmitting feedback information related to the plurality of RF channels.
摘要翻译：提供了利用针对闭环WLAN的固定速率的特征波束形成的比特和编码分配的方法和系统。用于在通信系统中传送信息的方法的方面可以包括利用多个发射天线经由多个射频（RF）信道发送数据，并且接收与多个RF信道有关的反馈信息。可以基于反馈信息将位分配给经由多个RF信道中的至少一个的传输。可以经由多个RF信道中的至少一个来发送具有至少基于比特分配的第一编码率的后续数据的至少一部分。该方法还可以包括利用多个接收天线经由多个RF信道接收数据，以及发送与多个RF信道有关的反馈信息。

64. 发明授权

US07583933B2 Dynamic frequency selection in a wireless communication network 失效
标题翻译：无线通信网络中的动态频率选择
公开(公告)号：US07583933B2
公开(公告)日：2009-09-01
申请号：US11595363
申请日：2006-11-09
申请人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
发明人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
IPC分类号： H04B17/00 , H04W72/00
CPC分类号： H04W16/10 , H04W36/06 , H04W36/30
摘要： A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.
摘要翻译：一种用于在无线通信系统或网络中进行动态频率选择的方法和装置包括当接入点确定由接入点正在使用的无线信道上的干扰时开始的处理。当干扰超过干扰阈值时，接入点向由接入点为信道频谱信息服务的附属站提供请求分组。处理继续，因为附属站产生关于无线通信网络中的每个无线信道的信道频谱信息。然后，处理继续，随着附属站经由当前无线信道向接入点提供信道频谱信息。接入点解释信道频谱信息以确定无线通信网络内的多个无线信道的期望的无线信道。接入点然后经由当前无线信道向附属站提供选择分组，以指示接入点将在特定的未来时间开始使用期望的无线信道。

65. 发明申请

US20080317178A1 METHOD AND SYSTEM FOR SFBC/STBC USING INTERFERENCE CANCELLATION 审中-公开
标题翻译： SFBC / STBC使用干扰消除的方法和系统
公开(公告)号：US20080317178A1
公开(公告)日：2008-12-25
申请号：US11874566
申请日：2007-10-18
申请人： Joonsuk Kim , Nambirajan Seshadri , Sirikiat Ariyavisitakul
发明人： Joonsuk Kim , Nambirajan Seshadri , Sirikiat Ariyavisitakul
IPC分类号： H04L1/02 , H04B7/10 , H04L1/00
CPC分类号： H04B7/0669 , H04B7/068 , H04B7/0854 , H04L1/0631 , H04L25/0224
摘要： Aspects of a method and system for SFBC and/or STBC using interference cancellation are presented. Aspects of an exemplary system may enable rate 5 4 coding in diversity communication systems that utilize SFBC and/or STBC. A transmitting station may utilize SFBC or STBC to generate and/or concurrently transmit a plurality of signals symbols, which are encoded to enable rate 5 4 transmission. A receiving station may decode rate 5 4 encoded signals utilizing various methods to achieve interference cancellation. The interference cancellation may cancel at least a portion of intersymbol interference, which may occur among symbols in the received rate 5 4 encoded signals. Various methods may be utilized to compute estimated values for at least a portion of the symbols. These methods may include the class of linear estimation methods, such as minimum mean squared error (MMSE) estimation.
摘要翻译：提出了使用干扰消除的SFBC和/或STBC的方法和系统的方面。示例性系统的方面可以实现速率 $5使用SFBC和/或STBC的分集通信系统中的mn>编码。发送站可以利用SFBC或STBC生成和/或同时发送多个信号符号，这些符号被编码以使得能够使用率54传输。接收站可以解码速率54使用各种方法实现干扰消除的编码信号。干扰消除可以消除在接收速率中的符号之间可能出现的符号间干扰的至少一部分\frac{编码信号}{54可以使用各种方法来计算至少一部分符号的估计值。这些方法可以包括诸如最小均方误差（MMSE）估计之类的线性估计方法。}$

66. 发明申请

US20080311873A1 METHOD AND SYSTEM FOR SFBC/STBC IN A COMMUNICATION DIVERSITY SYSTEM USING ANGLE FEEDBACK 失效
标题翻译：在使用角度反馈的通信多样性系统中的SFBC / STBC的方法和系统
公开(公告)号：US20080311873A1
公开(公告)日：2008-12-18
申请号：US11864611
申请日：2007-09-28
申请人： Joonsuk Kim , Sirikiat Ariyavisitakul , Nambirajan Seshadri
发明人： Joonsuk Kim , Sirikiat Ariyavisitakul , Nambirajan Seshadri
IPC分类号： H04B1/06
CPC分类号： H04B7/0634 , H04B7/0669 , H04B7/068 , H04B7/0891 , H04L1/0003 , H04L1/04 , H04L1/0675 , H04L5/0007 , H04L5/0053 , H04L25/0224
摘要： Aspects of a system for STBC/SFBC in a communication system using angle feedback may include a receiver, which enables reception of signals via a plurality of receiving antennas. The receiver may enable computation of a rotation factor value based on the received signals and utilization of the computed rotation factor value to receive subsequent signals via the plurality of receiving antennas. The received signals may comprise preamble data. The receiver may enable computation of channel estimate values based on the received preamble data. A rotation angle value may be computed based on the computed channel estimate values. The rotation factor value may be computed based on the computed rotation angle value. The receiver may enable transmission of feedback information comprising the computed rotation factor and/or the computed rotation angle.
摘要翻译：在使用角度反馈的通信系统中用于STBC / SFBC的系统的方面可以包括能够经由多个接收天线接收信号的接收机。接收机可以使得能够基于所接收的信号来计算旋转因子值，并且利用所计算的旋转因子值以经由多个接收天线接收后续信号。所接收的信号可以包括前导码数据。接收机可以使得能够基于所接收的前导码数据来计算信道估计值。可以基于所计算的信道估计值来计算旋转角度值。可以基于计算的旋转角度值来计算旋转因子值。接收机可以实现包括所计算的旋转因子和/或所计算的旋转角度的反馈信息的传输。

67. 发明授权

US07158759B2 Dynamic frequency selection in a wireless communication network 有权
公开(公告)号：US07158759B2
公开(公告)日：2007-01-02
申请号：US10011004
申请日：2001-12-03
申请人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
发明人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
IPC分类号： H04B17/00 , H04Q7/30 , H04Q7/32 , H04Q7/34 , H04Q7/00
CPC分类号： H04W16/10 , H04W36/06 , H04W36/30
摘要： A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.

68. 发明申请

US20060203836A1 Method and system for parsing bits in an interleaver for adaptive modulations in a multiple input multiple output (MIMO) wireless local area network (WLAN) system 有权
标题翻译：用于在多输入多输出（MIMO）无线局域网（WLAN）系统中解调用于自适应调制的交织器中的比特的方法和系统
公开(公告)号：US20060203836A1
公开(公告)日：2006-09-14
申请号：US11146394
申请日：2005-06-06
申请人： Joonsuk Kim
发明人： Joonsuk Kim
IPC分类号： H04L12/28 , H04J15/00
CPC分类号： H04L1/0071 , H04L1/0003 , H04L1/0041 , H04L1/06
摘要： Aspects of a method and system for parsing bits in an interleaver for adaptive modulations in a multiple input multiple output (MIMO) wireless local area network (WLAN) system are provided. The interleaver may assign at least one binary bit of information, among a plurality of binary bits of information to be transmitted, to one of a plurality of spatial streams based on a current modulation type. A subsequent binary bit of information, among a plurality of binary bits of information to be transmitted, may be assigned to a subsequent one of the plurality of spatial streams based on the current modulation type and/or a subsequent modulation type. The interleaver may assign at least one additional bit of information, among the plurality of binary bits of information to be transmitted, to one of a plurality of spatial streams based on the current modulation type and/or the subsequent modulation type.
摘要翻译：提供了一种用于在多输入多输出（MIMO）无线局域网（WLAN）系统中解交织器中的位用于自适应调制的方法和系统的方面。交织器可以基于当前的调制类型，将要发送的信息的多个二进制位中的信息的至少一个二进制位分配给多个空间流中的一个。可以基于当前调制类型和/或随后的调制类型将要发送的信息的多个二进制位之间的后续二进制位信息分配给多个空间流中的后续的一个。交织器可以基于当前调制类型和/或随后的调制类型，将要发送的信息的多个二进制位中的至少一个附加位信息分配给多个空间流中的一个。

69. 发明申请

US20060109937A1 Wireless system having channel fading compensation using minimum mean square error 失效
标题翻译：无线系统具有使用最小均方误差的信道衰落补偿
公开(公告)号：US20060109937A1
公开(公告)日：2006-05-25
申请号：US11093035
申请日：2005-03-30
申请人： Joonsuk Kim
发明人： Joonsuk Kim
IPC分类号： H04B7/10
CPC分类号： H04L25/03012 , H04L1/0643 , H04L25/0204 , H04L2025/03426
摘要： A MISO wireless LAN includes multiple inputs and a single output. The present invention includes a method and apparatus of compensating for time sensitive or frequency sensitive channel fading using minimum mean square error. The time sensitive channel fading is represented by the vector [H(t)], and the interference compensation is performed by multiplying the incoming data by a minimum mean square error factor that is determined as [(H*·H+1/SNR)−1·H*]. More specifically, the H* represents channel matching and (H*·H+1/SNR)−1 represents interference cancellation due to channel fading over time or frequency.
摘要翻译： MISO无线局域网包括多个输入和一个输出。本发明包括使用最小均方误差补偿时间敏感或频率敏感信道衰落的方法和装置。时间敏感信道衰落由矢量[H（t）]表示，干扰补偿通过将输入数据乘以确定为[（H * .H + 1 / SNR）的最小均方误差因子来执行， ^{-1 .H *]。更具体地，H *表示信道匹配，（H * .H + 1 / SNR）表示由于随时间或频率的信道衰落引起的干扰消除。}

70. 发明申请

US20050281361A1 Interference cancellation of STBC with multiple streams in OFDM for wlan 审中-公开
标题翻译： wlan的OFDM中的多个流的STBC的干扰消除
公开(公告)号：US20050281361A1
公开(公告)日：2005-12-22
申请号：US10960571
申请日：2004-10-08
申请人： Joonsuk Kim
发明人： Joonsuk Kim
IPC分类号： H04B7/08 , H04B7/10
CPC分类号： H04B7/0848 , H04B7/0669 , H04B7/084
摘要： A method of receiving data over M receiving antennas from N streams from K*N transmitting antennas, where M, N and K are integers and M is greater than N, includes the steps of receiving N signals over the M receiving antennas, applying the N signals in pairs to a plurality of decoder modules, removing interference terms between the paired N signals and providing data in a plurality of channels, selecting weighting factors and applying the weighting factors to the plurality of channels and combining the weighted plurality of channels to derive received data.
摘要翻译：一种从K * N个发射天线的N个流中接收M个接收天线的数据的方法，其中M，N和K是整数，M大于N，包括以下步骤：在M个接收天线上接收N个信号，信号成对地分配给多个解码器模块，去除成对的N个信号之间的干扰项并在多个信道中提供数据，选择加权因子并将加权因子应用于多个信道，并组合加权的多个信道以导出接收的数据。

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